|
|
<!DOCTYPE html>
|
|
|
<html lang="zh-CN">
|
|
|
<head>
|
|
|
<meta charset="utf-8">
|
|
|
<meta name="viewport" content="width=device-width,initial-scale=1">
|
|
|
<meta name="generator" content="VuePress 2.0.0-beta.51">
|
|
|
<style>
|
|
|
:root {
|
|
|
--c-bg: #fff;
|
|
|
}
|
|
|
html.dark {
|
|
|
--c-bg: #22272e;
|
|
|
}
|
|
|
html, body {
|
|
|
background-color: var(--c-bg);
|
|
|
}
|
|
|
</style>
|
|
|
<script>
|
|
|
const userMode = localStorage.getItem('vuepress-color-scheme');
|
|
|
const systemDarkMode = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
|
|
|
if (userMode === 'dark' || (userMode !== 'light' && systemDarkMode)) {
|
|
|
document.documentElement.classList.toggle('dark', true);
|
|
|
}
|
|
|
</script>
|
|
|
<link rel="icon" href="/images/favicon.ico"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta property="og:title" content="Arthas"><meta property="og:image:alt" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta property="og:image" content="/images/arthas_mate_image.png"><meta property="og:description" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta property="og:image:width" content="1200"><meta property="og:image:height" content="600"><meta property="twitter:image:src" content="/images/arthas_mate_image.png"><meta property="twitter:image:alt" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta itemprop="name" content="Arthas"><meta itemprop="image" content="/images/arthas_mate_image.png"><meta itemprop="description" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><script>
|
|
|
var _hmt = _hmt || [];
|
|
|
(function() {
|
|
|
var hm = document.createElement("script");
|
|
|
hm.src = "https://hm.baidu.com/hm.js?d5c5e25b100f0eb51a4c35c8a86ea9b4";
|
|
|
var s = document.getElementsByTagName("script")[0];
|
|
|
s.parentNode.insertBefore(hm, s);
|
|
|
})();
|
|
|
</script><meta name="aes-config" content="pid=xux-opensource&user_type=101&uid=&username=&dim10=arthas"><script src="//g.alicdn.com/alilog/mlog/aplus_v2.js" id="beacon-aplus" exparams="clog=o&aplus&sidx=aplusSidx&ckx=aplusCkx"></script><script src="//g.alicdn.com/aes/??tracker/1.0.34/index.js,tracker-plugin-pv/2.4.5/index.js,tracker-plugin-event/1.2.5/index.js,tracker-plugin-jserror/1.0.13/index.js,tracker-plugin-api/1.1.14/index.js,tracker-plugin-perf/1.1.8/index.js,tracker-plugin-eventTiming/1.0.4/index.js"></script><title>jfr | arthas</title><meta name="description" content="arthas 使用文档">
|
|
|
<link rel="modulepreload" href="/assets/app.977e81c1.js"><link rel="modulepreload" href="/assets/jfr.html.33d0e87c.js"><link rel="modulepreload" href="/assets/arthas-output-recording.5e4ef7bc.js"><link rel="modulepreload" href="/assets/jfr.html.4a6ffa9b.js"><link rel="prefetch" href="/assets/index.html.9412a900.js"><link rel="prefetch" href="/assets/index.html.3c03373d.js"><link rel="prefetch" href="/assets/index.html.31581b5f.js"><link rel="prefetch" href="/assets/advanced-use.html.3876077d.js"><link rel="prefetch" href="/assets/advice-class.html.e0d4601b.js"><link rel="prefetch" href="/assets/agent.html.ea7c22e0.js"><link rel="prefetch" href="/assets/arthas-properties.html.4eb539b4.js"><link rel="prefetch" href="/assets/arthas3.html.bee7bffc.js"><link rel="prefetch" href="/assets/async.html.473d320c.js"><link rel="prefetch" href="/assets/auth.html.ac4b67f2.js"><link rel="prefetch" href="/assets/base64.html.4b181e89.js"><link rel="prefetch" href="/assets/batch-support.html.a26e2295.js"><link rel="prefetch" href="/assets/cat.html.c8fbb1c5.js"><link rel="prefetch" href="/assets/classloader.html.04ede152.js"><link rel="prefetch" href="/assets/cls.html.315127c2.js"><link rel="prefetch" href="/assets/commands.html.205fab1f.js"><link rel="prefetch" href="/assets/contact-us.html.259f35c3.js"><link rel="prefetch" href="/assets/dashboard.html.72692286.js"><link rel="prefetch" href="/assets/docker.html.37a9000f.js"><link rel="prefetch" href="/assets/download.html.e9e19894.js"><link rel="prefetch" href="/assets/dump.html.aac38ab5.js"><link rel="prefetch" href="/assets/echo.html.7dac4c37.js"><link rel="prefetch" href="/assets/faq.html.0788d4da.js"><link rel="prefetch" href="/assets/getstatic.html.2a0b4f73.js"><link rel="prefetch" href="/assets/grep.html.09b9f3d8.js"><link rel="prefetch" href="/assets/groovy.html.5effbaba.js"><link rel="prefetch" href="/assets/heapdump.html.a85cf9a1.js"><link rel="prefetch" href="/assets/help.html.e5f40d88.js"><link rel="prefetch" href="/assets/history.html.9c7d2f2e.js"><link rel="prefetch" href="/assets/http-api.html.693537fc.js"><link rel="prefetch" href="/assets/idea-plugin.html.0e7ca126.js"><link rel="prefetch" href="/assets/install-detail.html.2265e71c.js"><link rel="prefetch" href="/assets/jad.html.6682b060.js"><link rel="prefetch" href="/assets/jvm.html.bf9d7353.js"><link rel="prefetch" href="/assets/keymap.html.4a935f93.js"><link rel="prefetch" href="/assets/logger.html.1626eaca.js"><link rel="prefetch" href="/assets/manual-install.html.7d61ca70.js"><link rel="prefetch" href="/assets/mbean.html.30acbef7.js"><link rel="prefetch" href="/assets/mc.html.2ccc704e.js"><link rel="prefetch" href="/assets/memory.html.354446c2.js"><link rel="prefetch" href="/assets/monitor.html.c7c0dac3.js"><link rel="prefetch" href="/assets/ognl.html.56febc20.js"><link rel="prefetch" href="/assets/options.html.f2203677.js"><link rel="prefetch" href="/assets/perfcounter.html.4783a666.js"><link rel="prefetch" href="/assets/profiler.html.0af96094.js"><link rel="prefetch" href="/assets/pwd.html.bb923193.js"><link rel="prefetch" href="/assets/quick-start.html.3b81c79e.js"><link rel="prefetch" href="/assets/quit.html.bc71e5cc.js"><link rel="prefetch" href="/assets/redefine.html.c762575e.js"><link rel="prefetch" href="/assets/release-notes.html.fef92c13.js"><link rel="prefetch" href="/assets/reset.html.05dc82b5.js"><link rel="prefetch" href="/assets/retransform.html.21fa57be.js"><link rel="prefetch" href="/assets/save-log.html.8b792c19.js"><link rel="prefetch" href="/assets/sc.html.9e910d92.js"><link rel="prefetch" href="/assets/session.html.620f0ab0.js"><link rel="prefetch" href="/assets/sm.html.00c3d56b.js"><link rel="prefetch" href="/assets/spring-boot-starter.html.07a5bd45.js"><link rel="prefetch" href="/assets/stack.html.17704cc3.js"><link rel="prefetch" href="/assets/start-arthas.html.f299d09e.js"><link rel="prefetch" href="/assets/stop.html.75db3522.js"><link rel="prefetch" href="/assets/sysenv.html.fcd3f33c.js"><link rel="prefetch" href="/assets/sysprop.html.f64847c1.js"><link rel="prefetch" href="/assets/tee.html.6c47fb2b.js"><link rel="prefetch" href="/assets/thread.html.222deb53.js"><link rel="prefetch" href="/assets/trace.html.f837a2ab.js"><link rel="prefetch" href="/assets/tt.html.a7531792.js"><link rel="prefetch" href="/assets/tunnel.html.cba00e0c.js"><link rel="prefetch" href="/assets/version.html.1f4f0bf6.js"><link rel="prefetch" href="/assets/vmoption.html.2a384e93.js"><link rel="prefetch" href="/assets/vmtool.html.b9760aa2.js"><link rel="prefetch" href="/assets/watch.html.8587d435.js"><link rel="prefetch" href="/assets/web-console.html.288b4929.js"><link rel="prefetch" href="/assets/index.html.ff1404b7.js"><link rel="prefetch" href="/assets/advanced-use.html.bb267793.js"><link rel="prefetch" href="/assets/advice-class.html.94b18967.js"><link rel="prefetch" href="/assets/agent.html.f70ec699.js"><link rel="prefetch" href="/assets/arthas-properties.html.7beccba1.js"><link rel="prefetch" href="/assets/async.html.4fa97ba6.js"><link rel="prefetch" href="/assets/auth.html.faba59b2.js"><link rel="prefetch" href="/assets/base64.html.f5d760ad.js"><link rel="prefetch" href="/assets/batch-support.html.f735e8b3.js"><link rel="prefetch" href="/assets/cat.html.61cfeeed.js"><link rel="prefetch" href="/assets/classloader.html.1a744f9d.js"><link rel="prefetch" href="/assets/cls.html.9582133b.js"><link rel="prefetch" href="/assets/commands.html.d485bb31.js"><link rel="prefetch" href="/assets/contact-us.html.cf7df316.js"><link rel="prefetch" href="/assets/dashboard.html.9adb43a6.js"><link rel="prefetch" href="/assets/docker.html.dcd7c4dc.js"><link rel="prefetch" href="/assets/download.html.293fd4d6.js"><link rel="prefetch" href="/assets/dump.html.db2e1d15.js"><link rel="prefetch" href="/assets/echo.html.bfe5b1ec.js"><link rel="prefetch" href="/assets/faq.html.eb9e34c2.js"><link rel="prefetch" href="/assets/getstatic.html.8413a0bf.js"><link rel="prefetch" href="/assets/grep.html.7d76329e.js"><link rel="prefetch" href="/assets/groovy.html.30d5ba53.js"><link rel="prefetch" href="/assets/heapdump.html.6bb17092.js"><link rel="prefetch" href="/assets/help.html.efd32fdc.js"><link rel="prefetch" href="/assets/history.html.df512aaf.js"><link rel="prefetch" href="/assets/http-api.html.1e0c4fe4.js"><link rel="prefetch" href="/assets/idea-plugin.html.88925ff1.js"><link rel="prefetch" href="/assets/install-detail.html.7256efcb.js"><link rel="prefetch" href="/assets/jad.html.00011a0c.js"><link rel="prefetch" href="/assets/jfr.html.79f874a0.js"><link rel="prefetch" href="/assets/jvm.html.6b3bf176.js"><link rel="prefetch" href="/assets/keymap.html.d625308a.js"><link rel="prefetch" href="/assets/logger.html.35648b6b.js"><link rel="prefetch" href="/assets/manual-install.html.fd88c8b7.js"><link rel="prefetch" href="/assets/mbean.html.392ceafa.js"><link rel="prefetch" href="/assets/mc.html.0af39dc5.js"><link rel="prefetch" href="/assets/memory.html.332c2c37.js"><link rel="prefetch" href="/assets/monitor.html.cd5568d1.js"><link rel="prefetch" href="/assets/ognl.html.82505296.js"><link rel="prefetch" href="/assets/options.html.07168402.js"><link rel="prefetch" href="/assets/perfcounter.html.c4732563.js"><link rel="prefetch" href="/assets/profiler.html.cb7e80ca.js"><link rel="prefetch" href="/assets/pwd.html.12016768.js"><link rel="prefetch" href="/assets/quick-start.html.4690bd9e.js"><link rel="prefetch" href="/assets/quit.html.c7fec324.js"><link rel="prefetch" href="/assets/redefine.html.2e436be1.js"><link rel="prefetch" href="/assets/release-notes.html.a5a31dff.js"><link rel="prefetch" href="/assets/reset.html.6e400246.js"><link rel="prefetch" href="/assets/retransform.html.5387fa9b.js"><link rel="prefetch" href="/assets/save-log.html.093b3bcd.js"><link rel="prefetch" href="/assets/sc.html.cc0b3807.js"><link rel="prefetch" href="/assets/session.html.d2bc15a6.js"><link rel="prefetch" href="/assets/sm.html.a9569eeb.js"><link rel="prefetch" href="/assets/spring-boot-starter.html.ff12f0c1.js"><link rel="prefetch" href="/assets/stack.html.d7b82b5f.js"><link rel="prefetch" href="/assets/start-arthas.html.7adf3019.js"><link rel="prefetch" href="/assets/stop.html.770c7d0b.js"><link rel="prefetch" href="/assets/sysenv.html.c0682e8e.js"><link rel="prefetch" href="/assets/sysprop.html.05cb07d3.js"><link rel="prefetch" href="/assets/tee.html.235d5b7c.js"><link rel="prefetch" href="/assets/thread.html.91a56a2e.js"><link rel="prefetch" href="/assets/trace.html.1e385101.js"><link rel="prefetch" href="/assets/tt.html.dd804c2a.js"><link rel="prefetch" href="/assets/tunnel.html.d8272588.js"><link rel="prefetch" href="/assets/version.html.03456423.js"><link rel="prefetch" href="/assets/vmoption.html.333859d9.js"><link rel="prefetch" href="/assets/vmtool.html.6ffa578c.js"><link rel="prefetch" href="/assets/watch.html.49c58566.js"><link rel="prefetch" href="/assets/web-console.html.ad03b58b.js"><link rel="prefetch" href="/assets/intro.html.84f98ee4.js"><link rel="prefetch" href="/assets/user-question-history11440.html.945d2f9e.js"><link rel="prefetch" href="/assets/user-question-history11442.html.783bc8dc.js"><link rel="prefetch" href="/assets/user-question-history11443.html.d0a0a555.js"><link rel="prefetch" href="/assets/user-question-history11444.html.527dcabc.js"><link rel="prefetch" href="/assets/user-question-history11450.html.0b5859bb.js"><link rel="prefetch" href="/assets/user-question-history11451.html.7c8a6e22.js"><link rel="prefetch" href="/assets/user-question-history11452.html.a763d91d.js"><link rel="prefetch" href="/assets/user-question-history11453.html.5c967223.js"><link rel="prefetch" href="/assets/user-question-history11454.html.57a6549c.js"><link rel="prefetch" href="/assets/user-question-history11466.html.c0d693fe.js"><link rel="prefetch" href="/assets/user-question-history11467.html.625395e2.js"><link rel="prefetch" href="/assets/user-question-history11468.html.18c1233b.js"><link rel="prefetch" href="/assets/user-question-history11469.html.612d979c.js"><link rel="prefetch" href="/assets/user-question-history11784.html.f9437c23.js"><link rel="prefetch" href="/assets/user-question-history11795.html.bda07489.js"><link rel="prefetch" href="/assets/user-question-history11809.html.fe35e352.js"><link rel="prefetch" href="/assets/user-question-history11810.html.8374c3d6.js"><link rel="prefetch" href="/assets/user-question-history11814.html.d7769792.js"><link rel="prefetch" href="/assets/user-question-history12453.html.500b97bf.js"><link rel="prefetch" href="/assets/user-question-history12454.html.a008431b.js"><link rel="prefetch" href="/assets/user-question-history12455.html.ab02f527.js"><link rel="prefetch" href="/assets/user-question-history12706.html.5b3c7377.js"><link rel="prefetch" href="/assets/user-question-history12715.html.8003899b.js"><link rel="prefetch" href="/assets/user-question-history12716.html.ba178a77.js"><link rel="prefetch" href="/assets/user-question-history12740.html.42134d3d.js"><link rel="prefetch" href="/assets/user-question-history12741.html.458cbd4d.js"><link rel="prefetch" href="/assets/user-question-history13448.html.de3f47a3.js"><link rel="prefetch" href="/assets/user-question-history13504.html.4ef2df02.js"><link rel="prefetch" href="/assets/user-question-history13506.html.5d616bd0.js"><link rel="prefetch" href="/assets/user-question-history13507.html.b5f944e9.js"><link rel="prefetch" href="/assets/user-question-history13508.html.dc8e3c01.js"><link rel="prefetch" href="/assets/user-question-history13509.html.7caa5f1e.js"><link rel="prefetch" href="/assets/user-question-history13510.html.0c3bd94a.js"><link rel="prefetch" href="/assets/user-question-history13511.html.7f29583a.js"><link rel="prefetch" href="/assets/user-question-history13512.html.4c7642e0.js"><link rel="prefetch" href="/assets/user-question-history13513.html.82e1a86f.js"><link rel="prefetch" href="/assets/user-question-history13522.html.7a8c0ca3.js"><link rel="prefetch" href="/assets/user-question-history14763.html.6ac12d31.js"><link rel="prefetch" href="/assets/user-question-history14831.html.3f163d4d.js"><link rel="prefetch" href="/assets/user-question-history14832.html.42a4044b.js"><link rel="prefetch" href="/assets/user-question-history14833.html.8db4f27a.js"><link rel="prefetch" href="/assets/user-question-history14834.html.f77f6f47.js"><link rel="prefetch" href="/assets/user-question-history14840.html.a63b53e2.js"><link rel="prefetch" href="/assets/user-question-history14843.html.b9c5ba60.js"><link rel="prefetch" href="/assets/user-question-history15167.html.06ed0a3a.js"><link rel="prefetch" href="/assets/user-question-history15543.html.f75a7715.js"><link rel="prefetch" href="/assets/user-question-history15726.html.5f9e3ece.js"><link rel="prefetch" href="/assets/user-question-history15728.html.6ae4ac04.js"><link rel="prefetch" href="/assets/user-question-history15729.html.351db40d.js"><link rel="prefetch" href="/assets/user-question-history15730.html.41960780.js"><link rel="prefetch" href="/assets/user-question-history15731.html.d573fdf9.js"><link rel="prefetch" href="/assets/user-question-history15735.html.3bd2be36.js"><link rel="prefetch" href="/assets/user-question-history15736.html.d5153f23.js"><link rel="prefetch" href="/assets/user-question-history15737.html.c707eb2c.js"><link rel="prefetch" href="/assets/user-question-history15738.html.2e65b59a.js"><link rel="prefetch" href="/assets/user-question-history15739.html.0899467d.js"><link rel="prefetch" href="/assets/user-question-history15740.html.576c981e.js"><link rel="prefetch" href="/assets/404.html.0ebd2d1e.js"><link rel="prefetch" href="/assets/index.html.6f877a42.js"><link rel="prefetch" href="/assets/index.html.e1c35a2c.js"><link rel="prefetch" href="/assets/index.html.1e667cb0.js"><link rel="prefetch" href="/assets/advanced-use.html.617a179e.js"><link rel="prefetch" href="/assets/advice-class.html.3966bc34.js"><link rel="prefetch" href="/assets/agent.html.169afc92.js"><link rel="prefetch" href="/assets/arthas-properties.html.22c5538b.js"><link rel="prefetch" href="/assets/arthas3.html.bf9d08b9.js"><link rel="prefetch" href="/assets/async.html.c6c0d8af.js"><link rel="prefetch" href="/assets/auth.html.5c0bb925.js"><link rel="prefetch" href="/assets/base64.html.6622b909.js"><link rel="prefetch" href="/assets/batch-support.html.ed0e8e34.js"><link rel="prefetch" href="/assets/cat.html.c157828e.js"><link rel="prefetch" href="/assets/classloader.html.78e92958.js"><link rel="prefetch" href="/assets/cls.html.597fe850.js"><link rel="prefetch" href="/assets/commands.html.8ea8f1c9.js"><link rel="prefetch" href="/assets/contact-us.html.c7f20f05.js"><link rel="prefetch" href="/assets/dashboard.html.2d16a96f.js"><link rel="prefetch" href="/assets/docker.html.9db38ea9.js"><link rel="prefetch" href="/assets/download.html.95f65033.js"><link rel="prefetch" href="/assets/dump.html.684152e3.js"><link rel="prefetch" href="/assets/echo.html.d544d81a.js"><link rel="prefetch" href="/assets/faq.html.93006841.js"><link rel="prefetch" href="/assets/getstatic.html.4d5ade71.js"><link rel="prefetch" href="/assets/grep.html.b546f76a.js"><link rel="prefetch" href="/assets/groovy.html.952384a3.js"><link rel="prefetch" href="/assets/heapdump.html.df875ce1.js"><link rel="prefetch" href="/assets/help.html.7f7277a0.js"><link rel="prefetch" href="/assets/history.html.e386bef5.js"><link rel="prefetch" href="/assets/http-api.html.ff6573e2.js"><link rel="prefetch" href="/assets/idea-plugin.html.2c435bd6.js"><link rel="prefetch" href="/assets/install-detail.html.58bf7631.js"><link rel="prefetch" href="/assets/jad.html.71725b4d.js"><link rel="prefetch" href="/assets/jvm.html.15cac4de.js"><link rel="prefetch" href="/assets/keymap.html.c39ae847.js"><link rel="prefetch" href="/assets/logger.html.66bfe44f.js"><link rel="prefetch" href="/assets/manual-install.html.f703b58a.js"><link rel="prefetch" href="/assets/mbean.html.abe68e1f.js"><link rel="prefetch" href="/assets/mc.html.582e3978.js"><link rel="prefetch" href="/assets/memory.html.74cd562f.js"><link rel="prefetch" href="/assets/monitor.html.fb70539d.js"><link rel="prefetch" href="/assets/ognl.html.58452c6e.js"><link rel="prefetch" href="/assets/options.html.4f6b8af0.js"><link rel="prefetch" href="/assets/perfcounter.html.b2361fcc.js"><link rel="prefetch" href="/assets/profiler.html.cfdf06fc.js"><link rel="prefetch" href="/assets/pwd.html.45f7b5f4.js"><link rel="prefetch" href="/assets/quick-start.html.98742ff3.js"><link rel="prefetch" href="/assets/quit.html.9be5034b.js"><link rel="prefetch" href="/assets/redefine.html.06971ba0.js"><link rel="prefetch" href="/assets/release-notes.html.ae7c7b03.js"><link rel="prefetch" href="/assets/reset.html.a2343863.js"><link rel="prefetch" href="/assets/retransform.html.4ce82edc.js"><link rel="prefetch" href="/assets/save-log.html.6180adba.js"><link rel="prefetch" href="/assets/sc.html.a72025c4.js"><link rel="prefetch" href="/assets/session.html.ef6f8ac5.js"><link rel="prefetch" href="/assets/sm.html.86cd6928.js"><link rel="prefetch" href="/assets/spring-boot-starter.html.248f9e7c.js"><link rel="prefetch" href="/assets/stack.html.1bde76ad.js"><link rel="prefetch" href="/assets/start-arthas.html.8d7621c3.js"><link rel="prefetch" href="/assets/stop.html.a68ed352.js"><link rel="prefetch" href="/assets/sysenv.html.40c9f7d4.js"><link rel="prefetch" href="/assets/sysprop.html.4eb01608.js"><link rel="prefetch" href="/assets/tee.html.436cef4e.js"><link rel="prefetch" href="/assets/thread.html.4f636016.js"><link rel="prefetch" href="/assets/trace.html.600f9b21.js"><link rel="prefetch" href="/assets/tt.html.9e9d979d.js"><link rel="prefetch" href="/assets/tunnel.html.b0c7fb87.js"><link rel="prefetch" href="/assets/version.html.69f86fd4.js"><link rel="prefetch" href="/assets/vmoption.html.639c7455.js"><link rel="prefetch" href="/assets/vmtool.html.98517f57.js"><link rel="prefetch" href="/assets/watch.html.53eabb0d.js"><link rel="prefetch" href="/assets/web-console.html.9c744879.js"><link rel="prefetch" href="/assets/index.html.a84844ee.js"><link rel="prefetch" href="/assets/advanced-use.html.39108be5.js"><link rel="prefetch" href="/assets/advice-class.html.2c6f4f1f.js"><link rel="prefetch" href="/assets/agent.html.719f7fa4.js"><link rel="prefetch" href="/assets/arthas-properties.html.343a2142.js"><link rel="prefetch" href="/assets/async.html.35353887.js"><link rel="prefetch" href="/assets/auth.html.e42b7afa.js"><link rel="prefetch" href="/assets/base64.html.28ca621c.js"><link rel="prefetch" href="/assets/batch-support.html.6b040071.js"><link rel="prefetch" href="/assets/cat.html.8716eb7e.js"><link rel="prefetch" href="/assets/classloader.html.f359a7bb.js"><link rel="prefetch" href="/assets/cls.html.e654aef1.js"><link rel="prefetch" href="/assets/commands.html.10091c22.js"><link rel="prefetch" href="/assets/contact-us.html.457d01dd.js"><link rel="prefetch" href="/assets/dashboard.html.bb68c60b.js"><link rel="prefetch" href="/assets/docker.html.d0532b9e.js"><link rel="prefetch" href="/assets/download.html.96adf786.js"><link rel="prefetch" href="/assets/dump.html.7397eecc.js"><link rel="prefetch" href="/assets/echo.html.2dc6eaf2.js"><link rel="prefetch" href="/assets/faq.html.6db3fc58.js"><link rel="prefetch" href="/assets/getstatic.html.1e109bf0.js"><link rel="prefetch" href="/assets/grep.html.c7e17e83.js"><link rel="prefetch" href="/assets/groovy.html.001f8d1b.js"><link rel="prefetch" href="/assets/heapdump.html.07bc1553.js"><link rel="prefetch" href="/assets/help.html.ebd24866.js"><link rel="prefetch" href="/assets/history.html.445ae69c.js"><link rel="prefetch" href="/assets/http-api.html.f5de2ec4.js"><link rel="prefetch" href="/assets/idea-plugin.html.be82f4f2.js"><link rel="prefetch" href="/assets/install-detail.html.0692c75f.js"><link rel="prefetch" href="/assets/jad.html.fa8e95fa.js"><link rel="prefetch" href="/assets/jfr.html.0dfa6982.js"><link rel="prefetch" href="/assets/jvm.html.a6c0f7fd.js"><link rel="prefetch" href="/assets/keymap.html.0e5a5b40.js"><link rel="prefetch" href="/assets/logger.html.d3d6c3e6.js"><link rel="prefetch" href="/assets/manual-install.html.b18c941c.js"><link rel="prefetch" href="/assets/mbean.html.05bd587d.js"><link rel="prefetch" href="/assets/mc.html.cb290020.js"><link rel="prefetch" href="/assets/memory.html.11c166db.js"><link rel="prefetch" href="/assets/monitor.html.49e70b36.js"><link rel="prefetch" href="/assets/ognl.html.4e58520e.js"><link rel="prefetch" href="/assets/options.html.cf3bf7c3.js"><link rel="prefetch" href="/assets/perfcounter.html.83ddcd61.js"><link rel="prefetch" href="/assets/profiler.html.8d268e29.js"><link rel="prefetch" href="/assets/pwd.html.43e9cc1a.js"><link rel="prefetch" href="/assets/quick-start.html.c0cf1f9e.js"><link rel="prefetch" href="/assets/quit.html.124a6c89.js"><link rel="prefetch" href="/assets/redefine.html.2483f8a2.js"><link rel="prefetch" href="/assets/release-notes.html.53ac11ef.js"><link rel="prefetch" href="/assets/reset.html.99285c85.js"><link rel="prefetch" href="/assets/retransform.html.9c53919b.js"><link rel="prefetch" href="/assets/save-log.html.5c8c7a50.js"><link rel="prefetch" href="/assets/sc.html.a3f58bf9.js"><link rel="prefetch" href="/assets/session.html.cb1f522c.js"><link rel="prefetch" href="/assets/sm.html.d8a5472b.js"><link rel="prefetch" href="/assets/spring-boot-starter.html.7c722865.js"><link rel="prefetch" href="/assets/stack.html.da28c14e.js"><link rel="prefetch" href="/assets/start-arthas.html.2c8f4ce4.js"><link rel="prefetch" href="/assets/stop.html.1bc31912.js"><link rel="prefetch" href="/assets/sysenv.html.3df0e090.js"><link rel="prefetch" href="/assets/sysprop.html.79164b76.js"><link rel="prefetch" href="/assets/tee.html.0f6c7e78.js"><link rel="prefetch" href="/assets/thread.html.88276c74.js"><link rel="prefetch" href="/assets/trace.html.e758c83b.js"><link rel="prefetch" href="/assets/tt.html.c722ad73.js"><link rel="prefetch" href="/assets/tunnel.html.f982c6d5.js"><link rel="prefetch" href="/assets/version.html.e9002a9e.js"><link rel="prefetch" href="/assets/vmoption.html.935ccf06.js"><link rel="prefetch" href="/assets/vmtool.html.3cb852d5.js"><link rel="prefetch" href="/assets/watch.html.91855110.js"><link rel="prefetch" href="/assets/web-console.html.570f2fb0.js"><link rel="prefetch" href="/assets/intro.html.2fdcc1f6.js"><link rel="prefetch" href="/assets/user-question-history11440.html.bf724961.js"><link rel="prefetch" href="/assets/user-question-history11442.html.76b083f2.js"><link rel="prefetch" href="/assets/user-question-history11443.html.dd43140c.js"><link rel="prefetch" href="/assets/user-question-history11444.html.653016c8.js"><link rel="prefetch" href="/assets/user-question-history11450.html.7d057dc8.js"><link rel="prefetch" href="/assets/user-question-history11451.html.1f26a5f1.js"><link rel="prefetch" href="/assets/user-question-history11452.html.bea18c73.js"><link rel="prefetch" href="/assets/user-question-history11453.html.87249060.js"><link rel="prefetch" href="/assets/user-question-history11454.html.3e79ce1b.js"><link rel="prefetch" href="/assets/user-question-history11466.html.f9d0e2b5.js"><link rel="prefetch" href="/assets/user-question-history11467.html.050a5b65.js"><link rel="prefetch" href="/assets/user-question-history11468.html.cee7430d.js"><link rel="prefetch" href="/assets/user-question-history11469.html.20a0d9c0.js"><link rel="prefetch" href="/assets/user-question-history11784.html.d3927d19.js"><link rel="prefetch" href="/assets/user-question-history11795.html.c3a233c7.js"><link rel="prefetch" href="/assets/user-question-history11809.html.72add501.js"><link rel="prefetch" href="/assets/user-question-history11810.html.c45d594c.js"><link rel="prefetch" href="/assets/user-question-history11814.html.472dad8c.js"><link rel="prefetch" href="/assets/user-question-history12453.html.e7b00da5.js"><link rel="prefetch" href="/assets/user-question-history12454.html.070671e6.js"><link rel="prefetch" href="/assets/user-question-history12455.html.11c0505a.js"><link rel="prefetch" href="/assets/user-question-history12706.html.22838089.js"><link rel="prefetch" href="/assets/user-question-history12715.html.40520bb9.js"><link rel="prefetch" href="/assets/user-question-history12716.html.037a2b51.js"><link rel="prefetch" href="/assets/user-question-history12740.html.6c67d89e.js"><link rel="prefetch" href="/assets/user-question-history12741.html.8f8ef438.js"><link rel="prefetch" href="/assets/user-question-history13448.html.5f318a8d.js"><link rel="prefetch" href="/assets/user-question-history13504.html.b4ad4d3e.js"><link rel="prefetch" href="/assets/user-question-history13506.html.1dd05bf1.js"><link rel="prefetch" href="/assets/user-question-history13507.html.0abfa3db.js"><link rel="prefetch" href="/assets/user-question-history13508.html.80bc13cc.js"><link rel="prefetch" href="/assets/user-question-history13509.html.1fabd419.js"><link rel="prefetch" href="/assets/user-question-history13510.html.3776c582.js"><link rel="prefetch" href="/assets/user-question-history13511.html.812ade32.js"><link rel="prefetch" href="/assets/user-question-history13512.html.6a5ff3a5.js"><link rel="prefetch" href="/assets/user-question-history13513.html.cffa2f95.js"><link rel="prefetch" href="/assets/user-question-history13522.html.7148f7cf.js"><link rel="prefetch" href="/assets/user-question-history14763.html.c98ba895.js"><link rel="prefetch" href="/assets/user-question-history14831.html.cbafb0f2.js"><link rel="prefetch" href="/assets/user-question-history14832.html.4b80ed42.js"><link rel="prefetch" href="/assets/user-question-history14833.html.8db8f508.js"><link rel="prefetch" href="/assets/user-question-history14834.html.3822e6fc.js"><link rel="prefetch" href="/assets/user-question-history14840.html.93548107.js"><link rel="prefetch" href="/assets/user-question-history14843.html.7ff9f07b.js"><link rel="prefetch" href="/assets/user-question-history15167.html.2c138f8a.js"><link rel="prefetch" href="/assets/user-question-history15543.html.51c1fac1.js"><link rel="prefetch" href="/assets/user-question-history15726.html.56513042.js"><link rel="prefetch" href="/assets/user-question-history15728.html.0493e20a.js"><link rel="prefetch" href="/assets/user-question-history15729.html.5c5f8459.js"><link rel="prefetch" href="/assets/user-question-history15730.html.29f394dc.js"><link rel="prefetch" href="/assets/user-question-history15731.html.aafe333e.js"><link rel="prefetch" href="/assets/user-question-history15735.html.5d6f161d.js"><link rel="prefetch" href="/assets/user-question-history15736.html.2bab0f9a.js"><link rel="prefetch" href="/assets/user-question-history15737.html.520a0092.js"><link rel="prefetch" href="/assets/user-question-history15738.html.4faf5663.js"><link rel="prefetch" href="/assets/user-question-history15739.html.d7f678a3.js"><link rel="prefetch" href="/assets/user-question-history15740.html.d979803b.js"><link rel="prefetch" href="/assets/404.html.6f723974.js">
|
|
|
<link rel="stylesheet" href="/assets/style.cf0d4c26.css">
|
|
|
</head>
|
|
|
<body>
|
|
|
<div id="app"><!--[--><div class="theme-container"><!--[--><header class="navbar"><div class="toggle-sidebar-button" title="切换侧边栏" aria-expanded="false" role="button" tabindex="0"><div class="icon" aria-hidden="true"><span></span><span></span><span></span></div></div><span><a href="/" class="" data-v-a8869d06><!----><span class="site-name can-hide" data-v-a8869d06>arthas</span><span class="navbar-version" data-v-a8869d06>v3.7.2</span></a></span><div class="navbar-items-wrapper" style=""><!--[--><!--]--><nav class="navbar-items can-hide"><!--[--><div class="navbar-item"><a href="/" class="" aria-label="首页"><!--[--><!--]--> 首页 <!--[--><!--]--></a></div><div class="navbar-item"><a class="external-link" href="/doc/arthas-tutorials.html?language=cn&id=arthas-basics" rel="noopener noreferrer" target="_blank" aria-label="在线教程"><!--[--><!--]--><span>在线教程</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/" class="router-link-active" aria-label="文档"><!--[--><!--]--> 文档 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/commands.md" class="" aria-label="命令列表"><!--[--><!--]--> 命令列表 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/download.md" class="" aria-label="下载"><!--[--><!--]--> 下载 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/expert/intro.md" class="" aria-label="专家答疑"><!--[--><!--]--> 专家答疑 <!--[--><!--]--></a></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .712.287Q17 4.575 17 5t-.288.713Q16.425 6 16 6h-1.9q-.525 1.775-1.425 3.45q-.9 1.675-2.225 3.15l2.4 2.45l-.75 2.05L9 14l-4.3 4.3q-.275.275-.7.275q-.425 0-.7-.275q-.275-.275-.275-.7q0-.425.275-.7l4.35-4.35q-.675-.775-1.25-1.563q-.575-.787-1.025-1.662Q5.1 8.8 5.35 8.4t.875-.4q.25 0 .525.162q.275.163.4.388Z"></path></svg><span class="arrow down"></span></button><button class="navbar-dropdown-title-mobile" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .712.287Q17 4.575 17 5t-.288.713Q16.425 6 16 6h-1.9q-.525 1.775-1.425 3.45q-.9 1.675-2.225 3.15l2.4 2.45l-.75 2.05L9 14l-4.3 4.3q-.275.275-.7.275q-.425 0-.7-.275q-.275-.275-.275-.7q0-.425.275-.7l4.35-4.35q-.675-.775-1.25-1.563q-.575-.787-1.025-1.662Q5.1 8.8 5.35 8.4t.875-.4q.25 0 .525.162q.275.163.4.388Z"></path></svg><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a aria-current="page" href="/doc/jfr.html" class="router-link-active router-link-exact-active router-link-active" aria-label="简体中文"><!--[--><!--]--> 简体中文 <!--[--><!--]--></a></li><li class="navbar-dropdown-item"><a href="/en/doc/jfr.html" class="" aria-label="English"><!--[--><!--]--> English <!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><a class="external-link" href="https://github.com/alibaba/arthas" rel="noopener noreferrer" target="_blank" aria-label="GitHub"><!--[--><!--]--><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewbox="0 0 24 24" style="height:1.25rem;width:1.25rem;vertical-align:bottom;"><path fill="currentColor" d="M12 2A10 10 0 0 0 2 12c0 4.42 2.87 8.17 6.84 9.5c.5.08.66-.23.66-.5v-1.69c-2.77.6-3.36-1.34-3.36-1.34c-.46-1.16-1.11-1.47-1.11-1.47c-.91-.62.07-.6.07-.6c1 .07 1.53 1.03 1.53 1.03c.87 1.52 2.34 1.07 2.91.83c.09-.65.35-1.09.63-1.34c-2.22-.25-4.55-1.11-4.55-4.92c0-1.11.38-2 1.03-2.71c-.1-.25-.45-1.29.1-2.64c0 0 .84-.27 2.75 1.02c.79-.22 1.65-.33 2.5-.33c.85 0 1.71.11 2.5.33c1.91-1.29 2.75-1.02 2.75-1.02c.55 1.35.2 2.39.1 2.64c.65.71 1.03 1.6 1.03 2.71c0 3.82-2.34 4.66-4.57 4.91c.36.31.69.92.69 1.85V21c0 .27.16.59.67.5C19.14 20.16 22 16.42 22 12A10 10 0 0 0 12 2Z"></path></svg><!----><!--[--><!--]--></a></div><!--]--></nav><!--[--><!--]--><button class="toggle-color-mode-button" title="切换颜色模式"><svg style="" class="icon" focusable="false" viewBox="0 0 32 32"><path d="M16 12.005a4 4 0 1 1-4 4a4.005 4.005 0 0 1 4-4m0-2a6 6 0 1 0 6 6a6 6 0 0 0-6-6z" fill="currentColor"></path><path d="M5.394 6.813l1.414-1.415l3.506 3.506L8.9 10.318z" fill="currentColor"></path><path d="M2 15.005h5v2H2z" fill="currentColor"></path><path d="M5.394 25.197L8.9 21.691l1.414 1.415l-3.506 3.505z" fill="currentColor"></path><path d="M15 25.005h2v5h-2z" fill="currentColor"></path><path d="M21.687 23.106l1.414-1.415l3.506 3.506l-1.414 1.414z" fill="currentColor"></path><path d="M25 15.005h5v2h-5z" fill="currentColor"></path><path d="M21.687 8.904l3.506-3.506l1.414 1.415l-3.506 3.505z" fill="currentColor"></path><path d="M15 2.005h2v5h-2z" fill="currentColor"></path></svg><svg style="display:none;" class="icon" focusable="false" viewBox="0 0 32 32"><path d="M13.502 5.414a15.075 15.075 0 0 0 11.594 18.194a11.113 11.113 0 0 1-7.975 3.39c-.138 0-.278.005-.418 0a11.094 11.094 0 0 1-3.2-21.584M14.98 3a1.002 1.002 0 0 0-.175.016a13.096 13.096 0 0 0 1.825 25.981c.164.006.328 0 .49 0a13.072 13.072 0 0 0 10.703-5.555a1.01 1.01 0 0 0-.783-1.565A13.08 13.08 0 0 1 15.89 4.38A1.015 1.015 0 0 0 14.98 3z" fill="currentColor"></path></svg></button><div id="docsearch-container"></div></div></header><!--]--><div class="sidebar-mask"></div><!--[--><aside class="sidebar"><nav class="navbar-items"><!--[--><div class="navbar-item"><a href="/" class="" aria-label="首页"><!--[--><!--]--> 首页 <!--[--><!--]--></a></div><div class="navbar-item"><a class="external-link" href="/doc/arthas-tutorials.html?language=cn&id=arthas-basics" rel="noopener noreferrer" target="_blank" aria-label="在线教程"><!--[--><!--]--><span>在线教程</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/" class="router-link-active" aria-label="文档"><!--[--><!--]--> 文档 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/commands.md" class="" aria-label="命令列表"><!--[--><!--]--> 命令列表 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/download.md" class="" aria-label="下载"><!--[--><!--]--> 下载 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/expert/intro.md" class="" aria-label="专家答疑"><!--[--><!--]--> 专家答疑 <!--[--><!--]--></a></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .712.287Q17 4.575 17 5t-.288.713Q16.425 6 16 6h-1.9q-.525 1.775-1.425 3.45q-.9 1.675-2.225 3.15l2.4 2.45l-.75 2.05L9 14l-4.3 4.3q-.275.275-.7.275q-.425 0-.7-.275q-.275-.275-.275-.7q0-.425.275-.7l4.35-4.35q-.675-.775-1.25-1.563q-.575-.787-1.025-1.662Q5.1 8.8 5.35 8.4t.875-.4q.25 0 .525.162q.275.163.4.388Z"></path></svg><span class="arrow down"></span></button><button class="navbar-dropdown-title-mobile" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .712.287Q17 4.575 17 5t-.288.713Q16.425 6 16 6h-1.9q-.525 1.775-1.425 3.45q-.9 1.675-2.225 3.15l2.4 2.45l-.75 2.05L9 14l-4.3 4.3q-.275.275-.7.275q-.425 0-.7-.275q-.275-.275-.275-.7q0-.425.275-.7l4.35-4.35q-.675-.775-1.25-1.563q-.575-.787-1.025-1.662Q5.1 8.8 5.35 8.4t.875-.4q.25 0 .525.162q.275.163.4.388Z"></path></svg><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a aria-current="page" href="/doc/jfr.html" class="router-link-active router-link-exact-active router-link-active" aria-label="简体中文"><!--[--><!--]--> 简体中文 <!--[--><!--]--></a></li><li class="navbar-dropdown-item"><a href="/en/doc/jfr.html" class="" aria-label="English"><!--[--><!--]--> English <!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><a class="external-link" href="https://github.com/alibaba/arthas" rel="noopener noreferrer" target="_blank" aria-label="GitHub"><!--[--><!--]--><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewbox="0 0 24 24" style="height:1.25rem;width:1.25rem;vertical-align:bottom;"><path fill="currentColor" d="M12 2A10 10 0 0 0 2 12c0 4.42 2.87 8.17 6.84 9.5c.5.08.66-.23.66-.5v-1.69c-2.77.6-3.36-1.34-3.36-1.34c-.46-1.16-1.11-1.47-1.11-1.47c-.91-.62.07-.6.07-.6c1 .07 1.53 1.03 1.53 1.03c.87 1.52 2.34 1.07 2.91.83c.09-.65.35-1.09.63-1.34c-2.22-.25-4.55-1.11-4.55-4.92c0-1.11.38-2 1.03-2.71c-.1-.25-.45-1.29.1-2.64c0 0 .84-.27 2.75 1.02c.79-.22 1.65-.33 2.5-.33c.85 0 1.71.11 2.5.33c1.91-1.29 2.75-1.02 2.75-1.02c.55 1.35.2 2.39.1 2.64c.65.71 1.03 1.6 1.03 2.71c0 3.82-2.34 4.66-4.57 4.91c.36.31.69.92.69 1.85V21c0 .27.16.59.67.5C19.14 20.16 22 16.42 22 12A10 10 0 0 0 12 2Z"></path></svg><!----><!--[--><!--]--></a></div><!--]--></nav><!--[--><!--]--><ul class="sidebar-items"><!--[--><li><p tabindex="0" class="sidebar-item sidebar-heading active">文档 <!----></p><ul style="" class="sidebar-item-children"><!--[--><li><a href="/doc/" class="router-link-active sidebar-item" aria-label="简介"><!--[--><!--]--> 简介 <!--[--><!--]--></a><!----></li><li><a href="/doc/quick-start.html" class="sidebar-item" aria-label="快速入门"><!--[--><!--]--> 快速入门 <!--[--><!--]--></a><!----></li><li><a href="/doc/install-detail.html" class="sidebar-item" aria-label="Arthas Install"><!--[--><!--]--> Arthas Install <!--[--><!--]--></a><!----></li><li><a href="/doc/download.html" class="sidebar-item" aria-label="下载"><!--[--><!--]--> 下载 <!--[--><!--]--></a><!----></li><li><a href="/doc/advice-class.html" class="sidebar-item" aria-label="表达式核心变量"><!--[--><!--]--> 表达式核心变量 <!--[--><!--]--></a><!----></li><li><a href="/doc/commands.md" class="sidebar-item active collapsible" aria-label="命令列表"><!--[--><!--]--> 命令列表 <!--[--><!--]--></a><ul style="" class="sidebar-item-children"><!--[--><li><a href="/doc/auth.html" class="sidebar-item" aria-label="auth"><!--[--><!--]--> auth <!--[--><!--]--></a><!----></li><li><a href="/doc/base64.html" class="sidebar-item" aria-label="base64"><!--[--><!--]--> base64 <!--[--><!--]--></a><!----></li><li><a href="/doc/cat.html" class="sidebar-item" aria-label="cat"><!--[--><!--]--> cat <!--[--><!--]--></a><!----></li><li><a href="/doc/classloader.html" class="sidebar-item" aria-label="classloader"><!--[--><!--]--> classloader <!--[--><!--]--></a><!----></li><li><a href="/doc/cls.html" class="sidebar-item" aria-label="cls"><!--[--><!--]--> cls <!--[--><!--]--></a><!----></li><li><a href="/doc/dashboard.html" class="sidebar-item" aria-label="dashboard"><!--[--><!--]--> dashboard <!--[--><!--]--></a><!----></li><li><a href="/doc/dump.html" class="sidebar-item" aria-label="dump"><!--[--><!--]--> dump <!--[--><!--]--></a><!----></li><li><a href="/doc/echo.html" class="sidebar-item" aria-label="echo"><!--[--><!--]--> echo <!--[--><!--]--></a><!----></li><li><a href="/doc/getstatic.html" class="sidebar-item" aria-label="getstatic"><!--[--><!--]--> getstatic <!--[--><!--]--></a><!----></li><li><a href="/doc/grep.html" class="sidebar-item" aria-label="grep"><!--[--><!--]--> grep <!--[--><!--]--></a><!----></li><li><a href="/doc/heapdump.html" class="sidebar-item" aria-label="heapdump"><!--[--><!--]--> heapdump <!--[--><!--]--></a><!----></li><li><a href="/doc/help.html" class="sidebar-item" aria-label="help"><!--[--><!--]--> help <!--[--><!--]--></a><!----></li><li><a href="/doc/history.html" class="sidebar-item" aria-label="history"><!--[--><!--]--> history <!--[--><!--]--></a><!----></li><li><a href="/doc/jad.html" class="sidebar-item" aria-label="jad"><!--[--><!--]--> jad <!--[--><!--]--></a><!----></li><li><a aria-current="page" href="/doc/jfr.html" class="router-link-active router-link-exact-active router-link-active sidebar-item active" aria-label="jfr"><!--[--><!--]--> jfr <!--[--><!--]--></a><!----></li><li><a href="/doc/jvm.html" class="sidebar-item" aria-label="jvm"><!--[--><!--]--> jvm <!--[--><!--]--></a><!----></li><li><a href="/doc/keymap.html" class="sidebar-item" aria-label="keymap"><!--[--><!--]--> keymap <!--[--><!--]--></a><!----></li><li><a href="/doc/logger.html" class="sidebar-item" aria-label="logger"><!--[--><!--]--> logger <!--[--><!--]--></a><!----></li><li><a href="/doc/mbean.html" class="sidebar-item" aria-label="mbean"><!--[--><!--]--> mbean <!--[--><!--]--></a><!----></li><li><a href="/doc/mc.html" class="sidebar-item" aria-label="mc"><!--[--><!--]--> mc <!--[--><!--]--></a><!----></li><li><a href="/doc/memory.html" class="sidebar-item" aria-label="memory"><!--[--><!--]--> memory <!--[--><!--]--></a><!----></li><li><a href="/doc/monitor.html" class="sidebar-item" aria-label="monitor"><!--[--><!--]--> monitor <!--[--><!--]--></a><!----></li><li><a href="/doc/ognl.html" class="sidebar-item" aria-label="ognl"><!--[--><!--]--> ognl <!--[--><!--]--></a><!----></li><li><a href="/doc/options.html" class="sidebar-item" aria-label="options"><!--[--><!--]--> options <!--[--><!--]--></a><!----></li><li><a href="/doc/perfcounter.html" class="sidebar-item" aria-label="perfcounter"><!--[--><!--]--> perfcounter <!--[--><!--]--></a><!----></li><li><a href="/doc/profiler.html" class="sidebar-item" aria-label="profiler"><!--[--><!--]--> profiler <!--[--><!--]--></a><!----></li><li><a href="/doc/pwd.html" class="sidebar-item" aria-label="pwd"><!--[--><!--]--> pwd <!--[--><!--]--></a><!----></li><li><a href="/doc/quit.html" class="sidebar-item" aria-label="quit"><!--[--><!--]--> quit <!--[--><!--]--></a><!----></li><li><a href="/doc/redefine.html" class="sidebar-item" aria-label="redefine"><!--[--><!--]--> redefine <!--[--><!--]--></a><!----></li><li><a href="/doc/reset.html" class="sidebar-item" aria-label="reset"><!--[--><!--]--> reset <!--[--><!--]--></a><!----></li><li><a href="/doc/retransform.html" class="sidebar-item" aria-label="retransform"><!--[--><!--]--> retransform <!--[--><!--]--></a><!----></li><li><a href="/doc/sc.html" class="sidebar-item" aria-label="sc"><!--[--><!--]--> sc <!--[--><!--]--></a><!----></li><li><a href="/doc/session.html" class="sidebar-item" aria-label="session"><!--[--><!--]--> session <!--[--><!--]--></a><!----></li><li><a href="/doc/sm.html" class="sidebar-item" aria-label="sm"><!--[--><!--]--> sm <!--[--><!--]--></a><!----></li><li><a href="/doc/stack.html" class="sidebar-item" aria-label="stack"><!--[--><!--]--> stack <!--[--><!--]--></a><!----></li><li><a href="/doc/stop.html" class="sidebar-item" aria-label="stop"><!--[--><!--]--> stop <!--[--><!--]--></a><!----></li><li><a href="/doc/sysenv.html" class="sidebar-item" aria-label="sysenv"><!--[--><!--]--> sysenv <!--[--><!--]--></a><!----></li><li><a href="/doc/sysprop.html" class="sidebar-item" aria-label="sysprop"><!--[--><!--]--> sysprop <!--[--><!--]--></a><!----></li><li><a href="/doc/tee.html" class="sidebar-item" aria-label="tee"><!--[--><!--]--> tee <!--[--><!--]--></a><!----></li><li><a href="/doc/thread.html" class="sidebar-item" aria-label="thread"><!--[--><!--]--> thread <!--[--><!--]--></a><!----></li><li><a href="/doc/trace.html" class="sidebar-item" aria-label="trace"><!--[--><!--]--> trace <!--[--><!--]--></a><!----></li><li><a href="/doc/tt.html" class="sidebar-item" aria-label="tt"><!--[--><!--]--> tt <!--[--><!--]--></a><!----></li><li><a href="/doc/version.html" class="sidebar-item" aria-label="version"><!--[--><!--]--> version <!--[--><!--]--></a><!----></li><li><a href="/doc/vmoption.html" class="sidebar-item" aria-label="vmoption"><!--[--><!--]--> vmoption <!--[--><!--]--></a><!----></li><li><a href="/doc/vmtool.html" class="sidebar-item" aria-label="vmtool"><!--[--><!--]--> vmtool <!--[--><!--]--></a><!----></li><li><a href="/doc/watch.html" class="sidebar-item" aria-label="watch"><!--[--><!--]--> watch <!--[--><!--]--></a><!----></li><!--]--></ul></li><li><a href="/doc/advanced-use.md" class="sidebar-item collapsible" aria-label="其他特性"><!--[--><!--]--> 其他特性 <!--[--><!--]--></a><ul style="display:none;" class="sidebar-item-children"><!--[--><li><a href="/doc/async.html" class="sidebar-item" aria-label="Arthas 后台异步任务"><!--[--><!--]--> Arthas 后台异步任务 <!--[--><!--]--></a><!----></li><li><a href="/doc/save-log.html" class="sidebar-item" aria-label="执行结果存日志"><!--[--><!--]--> 执行结果存日志 <!--[--><!--]--></a><!----></li><li><a href="/doc/docker.html" class="sidebar-item" aria-label="Docker"><!--[--><!--]--> Docker <!--[--><!--]--></a><!----></li><li><a href="/doc/web-console.html" class="sidebar-item" aria-label="Web Console"><!--[--><!--]--> Web Console <!--[--><!--]--></a><!----></li><li><a href="/doc/tunnel.html" class="sidebar-item" aria-label="Arthas Tunnel"><!--[--><!--]--> Arthas Tunnel <!--[--><!--]--></a><!----></li><li><a href="/doc/idea-plugin.html" class="sidebar-item" aria-label="IDEA Plugin"><!--[--><!--]--> IDEA Plugin <!--[--><!--]--></a><!----></li><li><a href="/doc/arthas-properties.html" class="sidebar-item" aria-label="Arthas Properties"><!--[--><!--]--> Arthas Properties <!--[--><!--]--></a><!----></li><li><a href="/doc/agent.html" class="sidebar-item" aria-label="以 Java Agent 的方式启动"><!--[--><!--]--> 以 Java Agent 的方式启动 <!--[--><!--]--></a><!----></li><li><a href="/doc/spring-boot-starter.html" class="sidebar-item" aria-label="Arthas Spring Boot Starter"><!--[--><!--]--> Arthas Spring Boot Starter <!--[--><!--]--></a><!----></li><li><a href="/doc/http-api.html" class="sidebar-item" aria-label="Http API"><!--[--><!--]--> Http API <!--[--><!--]--></a><!----></li><li><a href="/doc/batch-support.html" class="sidebar-item" aria-label="批处理功能"><!--[--><!--]--> 批处理功能 <!--[--><!--]--></a><!----></li><!--]--></ul></li><li><a href="/doc/faq.html" class="sidebar-item" aria-label="FAQ"><!--[--><!--]--> FAQ <!--[--><!--]--></a><!----></li><li><p tabindex="0" class="sidebar-item collapsible">专家答疑 <span class="right arrow"></span></p><ul style="display:none;" class="sidebar-item-children"><!--[--><li><a href="/doc/expert/intro.html" class="sidebar-item" aria-label="无疑 专家智能答疑 介绍"><!--[--><!--]--> 无疑 专家智能答疑 介绍 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11466.html" class="sidebar-item" aria-label="arthas 有没有在线教程？"><!--[--><!--]--> arthas 有没有在线教程？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12454.html" class="sidebar-item" aria-label="arthas 怎么查看内存情况？"><!--[--><!--]--> arthas 怎么查看内存情况？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13507.html" class="sidebar-item" aria-label="arthas查看内存占用大的地方"><!--[--><!--]--> arthas查看内存占用大的地方 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14832.html" class="sidebar-item" aria-label="arthas启动时内存溢出"><!--[--><!--]--> arthas启动时内存溢出 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15730.html" class="sidebar-item" aria-label="arthas 观察方法中的某个变量的值"><!--[--><!--]--> arthas 观察方法中的某个变量的值 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11440.html" class="sidebar-item" aria-label="artahs 怎么使用？"><!--[--><!--]--> artahs 怎么使用？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11467.html" class="sidebar-item" aria-label="arthas 在线教程在哪？"><!--[--><!--]--> arthas 在线教程在哪？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12455.html" class="sidebar-item" aria-label="arthas 排查内存泄露的具体方法"><!--[--><!--]--> arthas 排查内存泄露的具体方法 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13508.html" class="sidebar-item" aria-label="arthas 如何查看内存使用情况"><!--[--><!--]--> arthas 如何查看内存使用情况 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14833.html" class="sidebar-item" aria-label="Start arthas failed, exception stack trace:com.sun.tools.attach"><!--[--><!--]--> Start arthas failed, exception stack trace:com.sun.tools.attach <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15731.html" class="sidebar-item" aria-label="artahs 过滤方法的阐述"><!--[--><!--]--> artahs 过滤方法的阐述 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11442.html" class="sidebar-item" aria-label="arthas 介绍一下"><!--[--><!--]--> arthas 介绍一下 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11468.html" class="sidebar-item" aria-label="arthas 怎么使用？"><!--[--><!--]--> arthas 怎么使用？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12706.html" class="sidebar-item" aria-label="arthas 火焰图 怎么看？"><!--[--><!--]--> arthas 火焰图 怎么看？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13509.html" class="sidebar-item" aria-label="通过arthas怎样排查项目中，哪个对象泄露了，或者占用内存太大"><!--[--><!--]--> 通过arthas怎样排查项目中，哪个对象泄露了，或者占用内存太大 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14834.html" class="sidebar-item" aria-label="使用arthas 跟踪进程服务后，进程所占用的文件描述符陡增，且文件描述符不下降"><!--[--><!--]--> 使用arthas 跟踪进程服务后，进程所占用的文件描述符陡增，且文件描述符不下降 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15735.html" class="sidebar-item" aria-label="arthas报错connect to telnet server error: 127.0.0.1 9999"><!--[--><!--]--> arthas报错connect to telnet server error: 127.0.0.1 9999 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11443.html" class="sidebar-item" aria-label="arthas 下载和安装"><!--[--><!--]--> arthas 下载和安装 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11469.html" class="sidebar-item" aria-label="linux的arthas使用教程"><!--[--><!--]--> linux的arthas使用教程 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12715.html" class="sidebar-item" aria-label="java 如何用arthas 查看 内存 情况？"><!--[--><!--]--> java 如何用arthas 查看 内存 情况？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13510.html" class="sidebar-item" aria-label="查看实时jvm内存大小"><!--[--><!--]--> 查看实时jvm内存大小 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14840.html" class="sidebar-item" aria-label="Unsupported class file major version 61 using arthas 3.6.3"><!--[--><!--]--> Unsupported class file major version 61 using arthas 3.6.3 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15736.html" class="sidebar-item" aria-label="artahs中jad参数"><!--[--><!--]--> artahs中jad参数 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11444.html" class="sidebar-item" aria-label="arthas 命令解释"><!--[--><!--]--> arthas 命令解释 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11784.html" class="sidebar-item" aria-label="arthas使用的各类方式有哪些？"><!--[--><!--]--> arthas使用的各类方式有哪些？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12716.html" class="sidebar-item" aria-label="arthas 怎么查看堆内存太高"><!--[--><!--]--> arthas 怎么查看堆内存太高 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13511.html" class="sidebar-item" aria-label="arthas方法运行后查看成员变量"><!--[--><!--]--> arthas方法运行后查看成员变量 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14843.html" class="sidebar-item" aria-label="arthas 支持jdk 20么？"><!--[--><!--]--> arthas 支持jdk 20么？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15737.html" class="sidebar-item" aria-label="进程停了 arthas也会同步停止么？"><!--[--><!--]--> 进程停了 arthas也会同步停止么？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11450.html" class="sidebar-item" aria-label="arthas 分析thread线程卡住"><!--[--><!--]--> arthas 分析thread线程卡住 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11795.html" class="sidebar-item" aria-label="使用arthas查看成员变量值具体怎么做？"><!--[--><!--]--> 使用arthas查看成员变量值具体怎么做？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12740.html" class="sidebar-item" aria-label="arthas怎么分析cpu很高"><!--[--><!--]--> arthas怎么分析cpu很高 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13512.html" class="sidebar-item" aria-label="如何查看java内存增长哪些对象"><!--[--><!--]--> 如何查看java内存增长哪些对象 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15167.html" class="sidebar-item" aria-label="介绍一下arthas"><!--[--><!--]--> 介绍一下arthas <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15738.html" class="sidebar-item" aria-label="arthas如何查看hashmap的值"><!--[--><!--]--> arthas如何查看hashmap的值 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11451.html" class="sidebar-item" aria-label="arthas 怎么排查cpu占用过高？"><!--[--><!--]--> arthas 怎么排查cpu占用过高？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11809.html" class="sidebar-item" aria-label="linux下的arthas 具体怎么用？（使用教程）"><!--[--><!--]--> linux下的arthas 具体怎么用？（使用教程） <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12741.html" class="sidebar-item" aria-label="如何使用arthas查看系统哪个地方内存占用过大"><!--[--><!--]--> 如何使用arthas查看系统哪个地方内存占用过大 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13513.html" class="sidebar-item" aria-label="arthas 监听成员变量值的方法是什么？"><!--[--><!--]--> arthas 监听成员变量值的方法是什么？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15543.html" class="sidebar-item" aria-label="arthas中tt命令如何查看方法入参的具体命令"><!--[--><!--]--> arthas中tt命令如何查看方法入参的具体命令 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15739.html" class="sidebar-item" aria-label="arthas可以监听私有方法吗"><!--[--><!--]--> arthas可以监听私有方法吗 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11452.html" class="sidebar-item" aria-label="arthas 查看方法耗时"><!--[--><!--]--> arthas 查看方法耗时 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11810.html" class="sidebar-item" aria-label="arthas查看方法耗时"><!--[--><!--]--> arthas查看方法耗时 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13448.html" class="sidebar-item" aria-label="如何使用arthas分析慢查询"><!--[--><!--]--> 如何使用arthas分析慢查询 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13522.html" class="sidebar-item" aria-label="Connect to telnet server error: 127.0.0.1 3658"><!--[--><!--]--> Connect to telnet server error: 127.0.0.1 3658 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15726.html" class="sidebar-item" aria-label="arthas 如何查询static变量"><!--[--><!--]--> arthas 如何查询static变量 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15740.html" class="sidebar-item" aria-label="arthas 分析内存身高的方法"><!--[--><!--]--> arthas 分析内存身高的方法 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11453.html" class="sidebar-item" aria-label="arthas 怎样查看方法耗时"><!--[--><!--]--> arthas 怎样查看方法耗时 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11814.html" class="sidebar-item" aria-label="arthas 怎么排查内存泄漏"><!--[--><!--]--> arthas 怎么排查内存泄漏 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13504.html" class="sidebar-item" aria-label="如何查看实时jvm内存大小占用"><!--[--><!--]--> 如何查看实时jvm内存大小占用 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14763.html" class="sidebar-item" aria-label="利用Arthas排查NoSuchMethodError"><!--[--><!--]--> 利用Arthas排查NoSuchMethodError <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15728.html" class="sidebar-item" aria-label="arthas 获取成员变量"><!--[--><!--]--> arthas 获取成员变量 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11454.html" class="sidebar-item" aria-label="arthas 常用命令介绍"><!--[--><!--]--> arthas 常用命令介绍 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12453.html" class="sidebar-item" aria-label="artahs 怎么查看内存情况？"><!--[--><!--]--> artahs 怎么查看内存情况？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13506.html" class="sidebar-item" aria-label="如何查看java内存增长哪些对象"><!--[--><!--]--> 如何查看java内存增长哪些对象 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14831.html" class="sidebar-item" aria-label="Dashboard 命令cpuUsage长期在90%左右"><!--[--><!--]--> Dashboard 命令cpuUsage长期在90%左右 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15729.html" class="sidebar-item" aria-label="arthas 怎么查看变量内容"><!--[--><!--]--> arthas 怎么查看变量内容 <!--[--><!--]--></a><!----></li><!--]--></ul></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/issues?q=label%3Auser-case" rel="noopener noreferrer" target="_blank" aria-label="用户案例"><!--[--><!--]--><span>用户案例</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas" rel="noopener noreferrer" target="_blank" aria-label="Star me at github"><!--[--><!--]--><span>Star me at github</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md" rel="noopener noreferrer" target="_blank" aria-label="编译调试/参与贡献"><!--[--><!--]--><span>编译调试/参与贡献</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/releases" rel="noopener noreferrer" target="_blank" aria-label="Release Notes"><!--[--><!--]--><span>Release Notes</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a href="/doc/contact-us.md" class="sidebar-item" aria-label="QQ 群/钉钉群"><!--[--><!--]--> QQ 群/钉钉群 <!--[--><!--]--></a><!----></li><!--]--></ul></li><!--]--></ul><!--[--><!--]--></aside><!--]--><!--[--><main class="page" data-v-fdd717e0><!--[--><!--]--><div class="right-menu-padding theme-default-content" data-v-fdd717e0><!--[--><!--]--><div class="right-menu-wrapper" data-v-fdd717e0 data-v-64666cd5><div class="right-menu-margin" data-v-64666cd5><div class="right-menu-title" data-v-64666cd5>目录</div><div class="right-menu-content" data-v-64666cd5><!--[--><!--]--></div></div></div><div data-v-fdd717e0><h1 id="jfr" tabindex="-1"><a class="header-anchor" href="#jfr" aria-hidden="true">#</a> jfr</h1><p><a href="https://arthas.aliyun.com/doc/arthas-tutorials.html?language=cn&id=command-jfr" target="_blank" rel="noopener noreferrer"><code>jfr</code>在线教程<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span></a></p><div class="custom-container tip"><p class="custom-container-title">提示</p><p>Java Flight Recorder (JFR) 是一种用于收集有关正在运行的 Java 应用程序的诊断和分析数据的工具。它集成到 Java 虚拟机 (JVM) 中，几乎不会造成性能开销，因此即使在负载较重的生产环境中也可以使用。</p></div><p><code>jfr</code> 命令支持在程序动态运行过程中开启和关闭 JFR 记录。 记录收集有关 event 的数据。事件在特定时间点发生在 JVM 或 Java 应用程序中。每个事件都有一个名称、一个时间戳和一个可选的有效负载。负载是与事件相关的数据，例如 CPU 使用率、事件前后的 Java 堆大小、锁持有者的线程 ID 等。</p><p><code>jfr</code> 命令基本运行结构是 <code>jfr cmd [actionArg]</code></p><blockquote><p>注意： JDK8 的 8u262 版本之后才支持 jfr</p></blockquote><h2 id="参数说明" tabindex="-1"><a class="header-anchor" href="#参数说明" aria-hidden="true">#</a> 参数说明</h2><table><thead><tr><th style="text-align:right;">参数名称</th><th style="text-align:left;">参数说明</th></tr></thead><tbody><tr><td style="text-align:right;"><em>cmd</em></td><td style="text-align:left;">要执行的操作 支持的命令【start，status，dump，stop】</td></tr><tr><td style="text-align:right;"><em>actionArg</em></td><td style="text-align:left;">属性名模式</td></tr><tr><td style="text-align:right;">[n:]</td><td style="text-align:left;">记录名称</td></tr><tr><td style="text-align:right;">[r:]</td><td style="text-align:left;">记录 id 值</td></tr><tr><td style="text-align:right;">[dumponexit:]</td><td style="text-align:left;">程序退出时，是否要 dump 出 .jfr 文件，默认为 false</td></tr><tr><td style="text-align:right;">[d:]</td><td style="text-align:left;">延迟多久后启动 JFR 记录，支持带单位配置，eg: 60s, 2m, 5h, 3d. 不带单位就是秒，默认无延迟</td></tr><tr><td style="text-align:right;">[duration:]</td><td style="text-align:left;">JFR 记录持续时间，支持单位配置，不带单位就是秒，默认一直记录</td></tr><tr><td style="text-align:right;">[s:]</td><td style="text-align:left;">采集 Event 的详细配置文件，默认是 default.jfc 位于 <code>$JAVA_HOME/lib/jfr/default.jfc</code></td></tr><tr><td style="text-align:right;">[f:]</td><td style="text-align:left;">将输出转储到指定路径</td></tr><tr><td style="text-align:right;">[maxage:]</td><td style="text-align:left;">缓冲区数据最大文件记录保存时间，支持单位配置，不带单位就是秒，默认是不限制</td></tr><tr><td style="text-align:right;">[maxsize:]</td><td style="text-align:left;">缓冲区的最大文件大小，支持单位配置， 不带单位是字节，m 或者 M 代表 MB，g 或者 G 代表 GB。</td></tr><tr><td style="text-align:right;">[state:]</td><td style="text-align:left;">jfr 记录状态</td></tr></tbody></table><h2 id="启动-jfr-记录" tabindex="-1"><a class="header-anchor" href="#启动-jfr-记录" aria-hidden="true">#</a> 启动 JFR 记录</h2><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>$ jfr start
|
|
|
Started recording 1. No limit specified, using maxsize=250MB as default.
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><div class="custom-container tip"><p class="custom-container-title">提示</p><p>默认情况下，开启的是默认参数的 jfr 记录</p></div><p>启动 jfr 记录，指定记录名，记录持续时间，记录文件保存路径。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>$ jfr start -n myRecording --duration 60s -f /tmp/myRecording.jfr
|
|
|
Started recording 2. The result will be written to:
|
|
|
/tmp/myRecording.jfr
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="查看-jfr-记录状态" tabindex="-1"><a class="header-anchor" href="#查看-jfr-记录状态" aria-hidden="true">#</a> 查看 JFR 记录状态</h2><p>默认是查看所有 JFR 记录信息</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr status
|
|
|
Recording: <span class="token assign-left variable">recording</span><span class="token operator">=</span><span class="token number">1</span> <span class="token assign-left variable">name</span><span class="token operator">=</span>Recording-1 <span class="token punctuation">(</span>running<span class="token punctuation">)</span>
|
|
|
Recording: <span class="token assign-left variable">recording</span><span class="token operator">=</span><span class="token number">2</span> <span class="token assign-left variable">name</span><span class="token operator">=</span>myRecording <span class="token assign-left variable">duration</span><span class="token operator">=</span>PT1M <span class="token punctuation">(</span>closed<span class="token punctuation">)</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>查看指定记录 id 的记录信息</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr status <span class="token parameter variable">-r</span> <span class="token number">1</span>
|
|
|
Recording: <span class="token assign-left variable">recording</span><span class="token operator">=</span><span class="token number">1</span> <span class="token assign-left variable">name</span><span class="token operator">=</span>Recording-1 <span class="token punctuation">(</span>running<span class="token punctuation">)</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><p>查看指定状态的记录信息</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr status <span class="token parameter variable">--state</span> closed
|
|
|
Recording: <span class="token assign-left variable">recording</span><span class="token operator">=</span><span class="token number">2</span> <span class="token assign-left variable">name</span><span class="token operator">=</span>myRecording <span class="token assign-left variable">duration</span><span class="token operator">=</span>PT1M <span class="token punctuation">(</span>closed<span class="token punctuation">)</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="dump-jfr-记录" tabindex="-1"><a class="header-anchor" href="#dump-jfr-记录" aria-hidden="true">#</a> dump jfr 记录</h2><p><code>jfr dump</code> 会输出从开始到运行该命令这段时间内的记录到 JFR 文件，且不会停止 <code>jfr</code> 的记录<br> 指定记录输出路径</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr dump <span class="token parameter variable">-r</span> <span class="token number">1</span> <span class="token parameter variable">-f</span> /tmp/myRecording1.jfr
|
|
|
Dump recording <span class="token number">1</span>, The result will be written to:
|
|
|
/tmp/myRecording1.jfr
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>不指定文件输出路径，默认是保存到<code>arthas-output</code>目录下</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr dump <span class="token parameter variable">-r</span> <span class="token number">1</span>
|
|
|
Dump recording <span class="token number">1</span>, The result will be written to:
|
|
|
/tmp/test/arthas-output/20220819-200915.jfr
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="停止-jfr-记录" tabindex="-1"><a class="header-anchor" href="#停止-jfr-记录" aria-hidden="true">#</a> 停止 jfr 记录</h2><p>不指定记录输出路径，默认是保存到<code>arthas-output</code>目录下</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr stop <span class="token parameter variable">-r</span> <span class="token number">1</span>
|
|
|
Stop recording <span class="token number">1</span>, The result will be written to:
|
|
|
/tmp/test/arthas-output/20220819-202049.jfr
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><blockquote><p>注意一条记录只能停止一次。</p></blockquote><p>也可以指定记录输出路径。</p><h2 id="通过浏览器查看-arthas-output-下面-jfr-记录的结果" tabindex="-1"><a class="header-anchor" href="#通过浏览器查看-arthas-output-下面-jfr-记录的结果" aria-hidden="true">#</a> 通过浏览器查看 arthas-output 下面 JFR 记录的结果</h2><p>默认情况下，arthas 使用 8563 端口，则可以打开： <a href="http://localhost:8563/arthas-output/" target="_blank" rel="noopener noreferrer">http://localhost:8563/arthas-output/<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span></a> 查看到<code>arthas-output</code>目录下面的 JFR 记录结果：</p><p><img src="/images/arthas-output-recording.png" alt=""></p><p>生成的结果可以用支持 jfr 格式的工具来查看。比如：</p><ul><li>JDK Mission Control ： https://github.com/openjdk/jmc</li></ul></div><!--[--><!--]--></div><footer class="page-meta right-menu-padding" data-v-fdd717e0><div class="meta-item edit-link"><a class="external-link meta-item-label" href="https://github.com/alibaba/arthas/edit/master/site/docs/doc/jfr.md" rel="noopener noreferrer" target="_blank" aria-label="在 GitHub 上编辑此页"><!--[--><!--]--><span>在 GitHub 上编辑此页</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="meta-item last-updated"><span class="meta-item-label">Last Updated: </span><!----></div><div class="meta-item contributors"><span class="meta-item-label">贡献者: </span><span class="meta-item-info"><!--[--><!--[--><span class="contributor" title="email: i@fatpandac.com">Fatpandac</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: 108991596+longxu0509@users.noreply.github.com">longxu0509</span><!----><!--]--><!--]--></span></div></footer><nav class="page-nav right-menu-padding" data-v-fdd717e0><p class="inner"><span class="prev"><a href="/doc/jad.html" class="" aria-label="jad"><!--[--><!--]--> jad <!--[--><!--]--></a></span><span class="next"><a href="/doc/jvm.html" class="" aria-label="jvm"><!--[--><!--]--> jvm <!--[--><!--]--></a></span></p></nav><!--[--><!--]--></main><!--]--></div><!----><!--]--></div>
|
|
|
<script type="module" src="/assets/app.977e81c1.js" defer></script>
|
|
|
</body>
|
|
|
</html>
|